Doorknob



Jan. 18, 1938. H. D. SHAW 2,105,616

DOORKNOB Original Filed Nov. 11, 1935 2 Sheets-Sheet l Jan. 18, 1938. 2,105,616

H. D. SHAW DOORKNOB Original Filed Nov. 11, 1935 2 Sheets-Sheet 2 4L MW Jay- 7 [0m 1%, Y#

Patented Jan. 18, 1938 UNITED STATES ATENT QFFEQE DOORKNOB Application November 11, 1935, Serial No. 49,129 Renewed September 10, 1936 6 Claims.

The principal objects of this invention are to provide a construction in which a fine adjustment can be made between the thimble of the knob and the spindle so that wear can be taken up to avoid the rattling of the knob and at the same time of such an extent that it can be used for applying the knob to doors of very different thicknesses; to provide means for holding the knob with respect to the spindle under any condition of adjustment without the use of the usual radial screw; to provide positive means for holding the adjustment, and to provide a simple form of cap for the knob which canbe removed easily in case of necessity.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a side view of a knob constructed in accordance with this invention;

29- Fig. 2 is an end view of the same showing the Fig. 3 is a sectional view of the knob applied to a door;

Fig. 4 is an end view of the knob with the cap .-",'-removed showing the interior construction;

Fig. 5 is a side view of the thirnble;

Fig. 6 is an end view of the thimble;

Fig. 7 is an outside end view of the knob with other parts removed;

30 Fig. 8 is a sectional view of the same on the line 8-8 of Fig. 4;

Fig. 9 is an edge view of the cap; Fig. 10 is a face view of the locking disc; Fig. 11 is an edge view thereof;

5 Fig. 12 is a rear View of the inside of the cap;

Fig. 13 is a view similar to Fig. 3 showing a modification Fig. 14 is a side view with the parts separated;

Fig. 15 is a view of the main part of the knob looking in the direction of the arrow I5 in Fig.

14, and

Fig. 16 is a view looking in the direction of the arrow I6 in Fig. 14.

This knob is designed to have its main part a 45 single piece of metal, or rigid material, which can be made of different material or color from the cap and thimble if desired for ornamental purposes and for convenience in assembling the cap and taking it apart.

50 In the form shown in the first twelve figures the usual spindle I0 is employed, shown as of square cross section, with screw threads on the corners as usual. Upon this spindle screws the shank II and this shank is adjusted back and 55 forth on the screw threads for adjusting it to different thicknesses of doors and taking up any slack due to inaccurate setting or to wear. The shank is provided at its outer end with a noncircular projection I2, in this case shown as a circle with a segment taken ofi at each side, this 5 part projecting from a flat surface I3 near the end of the shank.

The knob I4, which may be made of glass, metal or other solid material, is provided with a circular recess I5for receiving the surface I 3 of the shank and with a perforation I6 of the same shape as the projection I2 to receive that projection and provide a positive connection between the two so that the shank and knob will turn together. On the inside the knob is provided with a flat surface l'I opposite the annular recess I5 and from it project radial areas which form the ends of longitudinal slots IS which extend from the outer end inwardly as far as the surface I7. Between each two adjacent slots i9 there is an arcuate 2" wall 20 which is provided at the outer end with an inwardly extending wall 2I which has a flat surface 22 outside. The knob extends beyond this surface to provide a circular space 23. The walls 2| at opposite sides are cut back exposing the 535 tops of walls 2% beneath as shown in Fig. 4.

Inside the knob is located a locking disc 24 having radial projections 25 and a square central opening 26 to receive the spindle I9. These projections 25 project into the slots I9 and the disc 24 rests on the surface I! when the parts are as sembled. A nut 2! is provided of a non-circular shape and having a diametrical kerf 28 to receive a screw-driver. This nut is threaded to fit the end of the spindle I ll and is screwed down to clamp the locking disc 24 in place.

Spaced from the nut 21 is a cap 30 which is shaped outside to form a continuation of the shape of the exterior of the knob. It is shown as provided with two recesses or perforations 3| to receive a spanner to lock it and unlock it. It is provided with two, or any suitable number of, outwardly extending walls 32 adapted to enter behind the projections 2| that are not cut back. Before being assembled, at least one of these 5 walls 32 is bent inwardly at 33 so that it constitutes a rotation stop. The cap is placed in position with its walls 32 in the cut-away projection 2| and turned so that this construction really constitutes a bayonet joint with a stop at the 0 end to hold the cap in position.

The parts are assembled as shown in Fig. 3, and it will be seen that the knob I4, through the nut 21, is fixed in place and the locking disc 24 also clamped in position to hold any adjustment end of the collar.

the knob of such material and color as may be desired.

This constitutes means whereby the positio of the shank l I and the knob is can be adjusted finally to take up any slack and prevent any motion of the knob on the spindle that will be likely to cause rattling. After wear, fine adjustments can be made, the fineness dependingon the number of projections 25. The cap will not be displaced accidentally but can be removed easily by the use of a spanner in the holes 3| and the adjustment then can be made Without removing anything else.

In the form shown on the second sheet the shank H is the same as just described, except that the non-circular projection 35 is hexagonal and likewise the opening 35.

The knob 31 is similar but more simple than the knob 14. It has a central perforation 38 and the fiat surface 39. At the other end it has a simple shouldered circular recess 4! The cap 4| simply has an internally threaded central projection 42 screwing into a collar 43. The threaded spindle l6 screws into the other A washer 44 surrounds the spindle against the surface 39. A spring 65 bears against the washer 44 and cap M to apply pressure to the cap. This constitutes a simpler arrangement. It is less expensive to make and maintain.

Having thus described my invention and. the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. As an article of manufacture, a knob comprising a spindle, a knob proper and shank, said shank being adjustable along the spindle and the knob and shank having inter-engaging means for preventing relative rotation thereof, a locking disc located in the knob and having means for adjustment and preventing relative rotation of the knob and spindle, and means to clamp the locking disc to the knob and hold the shank in position with respect to the knob.

2. As an article of manufacture, a knob having a space inside and provided with a series of longitudinal slots around it inside, a locking disc having projections: which enter the slots, where by it may be set with any projection entering any one of the slots for adjustment, a threaded spindle passing through the disc, and a nut on the spindle adapted to be screwed up thereon to hold the disc firmly in the knob.

3. The combination with a threaded spindle, of a shank, said shank being adjustable along the spindle and the knob and shank having interengaging means for preventing relative rotation thereof, the knob having longitudinal slots, a locking disc located in the knoband having radial projections entering said slots, and a nut screwing on the spindle and adapted to clamp the locking disc to the knob and hold the shank in position with respect to the knob, whereby the adjustment of the knob can be made by taking out the disc, turning it to a diiferent position in which its projections will enter the slots in a different place, and relatively adjusting the nut and shank.

4. As an article of manufacture, a knob comprising a knob proper and shank, said shank being adjustable along a spindle independently of the knob and with the knob in assembling when an inter-engaging means connects them, and the knob and shank having inter-engaging means for preventing relative rotation thereof, and means extending intothe knob when assembled to hold the shank in set position with respect to the spindle.

5. A door knob comprising a main annular member in one piece, provided with an open end and a cup shaped non-circular means for holding a shank on the other end of the main member, and a circular toothed locking plate inside the main member, said main member having longitudinal grooves on its inner surface for receiving said teeth, whereby the locking plate can be taken out of the knob by hand, turned slightly with respect to the shank and put back in another circumferential position for adjustment.

6. As an article of manufacture, a. knob comprising a spindle and a knob proper and shank, said shank being adjustable along the spindle and the knob and shank having inter-engaging means for preventing relative rotation thereof, a locking disc located in the knob, and means to clamp the locking disc to the knob and shank to hold the spindle in set position with respect to the knob.

HAROLD D. SHAW. 

